package com.xie.gulimall.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.xie.common.constant.ProductConstant;
import com.xie.common.to.SkuHasStockVo;
import com.xie.common.to.SkuReductionTo;
import com.xie.common.to.SpuBoundTo;
import com.xie.common.to.es.SkuEsModel;
import com.xie.common.utils.PageUtils;
import com.xie.common.utils.Query;
import com.xie.common.utils.R;
import com.xie.gulimall.product.dao.SpuInfoDao;
import com.xie.gulimall.product.entity.*;
import com.xie.gulimall.product.feign.CouponFeignService;
import com.xie.gulimall.product.feign.SearchFeignService;
import com.xie.gulimall.product.feign.WareFeignService;
import com.xie.gulimall.product.service.*;
import com.xie.gulimall.product.vo.*;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;


/**
 * @author xiefeixiang
 */
@Slf4j
@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {
    @Autowired
    private SpuInfoService spuInfoService;

    @Autowired
    private SpuInfoDescService spuInfoDescService;

    @Autowired
    SpuImagesService spuImagesService;

    @Autowired
    private AttrService attrService;

    @Autowired
    private SkuImagesService skuImagesService;

    @Autowired
    private ProductAttrValueService productAttrValueService;
    @Autowired
    private SkuInfoService skuInfoService;
    @Autowired
    private WareFeignService wareFeignService;
    @Autowired
    private SearchFeignService searchFeignService;

    /**
     * 远程调用服务
     */
    @Autowired
    private CouponFeignService couponFeignService;

    @Autowired
    private SkuSaleAttrValueService skuSaleAttrValueService;
    @Autowired
    private BrandService brandService;

    @Autowired
    private CategoryService categoryService;

    @Override

    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    /**
     * @param vo
     */
    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {
        //1.保存spu的基本信息 pms_spu_info
        SpuInfoEntity spuInfoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo, spuInfoEntity);
        spuInfoEntity.setCreateTime(new Date());
        spuInfoEntity.setUpdateTime(new Date());
        //数据库隔离界别 SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
        spuInfoService.saveBaseSpuInfo(spuInfoEntity);

        //2.保存spu的描述图片 pms_spu_info_desc
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity spuInfoDescEntity = new SpuInfoDescEntity();
        spuInfoDescEntity.setSpuId(spuInfoEntity.getId());
        spuInfoDescEntity.setDecript(String.join(",", decript));
        //主键默认自增，这里是要自己输入
        spuInfoDescService.saveSpuInfoDesc(spuInfoDescEntity);

        // 3.保存spu的图片集 pms_spu_images
        List<String> images = vo.getImages();
        spuImagesService.saveSpuInfoImages(spuInfoEntity.getId(), images);

        // 4.保存spu的规格属性 pms_product_attr_value
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity productAttrValueEntity = new ProductAttrValueEntity();
            productAttrValueEntity.setAttrId(attr.getAttrId());
            AttrEntity byId = attrService.getById(attr.getAttrId());
            productAttrValueEntity.setAttrName(byId.getAttrName());
            productAttrValueEntity.setAttrValue(attr.getAttrValues());
            productAttrValueEntity.setQuickShow(attr.getShowDesc());
            productAttrValueEntity.setSpuId(spuInfoEntity.getId());
            return productAttrValueEntity;
        }).collect(Collectors.toList());
        productAttrValueService.saveAttrValue(collect);

        // 5.保存积分信息 gulimall_sms\sms_spu_bounds
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds, spuBoundTo);
        spuBoundTo.setSpuId(spuInfoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundTo);
        if (r.getCode() != 0) {
            log.error("远程保存spu积分信息失败");
        }
        // 5.保存sku表
        // 5.1 sku基本信息 pms_sku_info
        List<Skus> skus = vo.getSkus();
        if (skus != null && skus.size() > 0) {
            skus.forEach(sku ->
            {
                String defaultImg = "";
                for (Images image : sku.getImages()) {
                    if (image.getDefaultImg() == 1) {
                        defaultImg = image.getImgUrl();
                    }
                }
                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(sku, skuInfoEntity);
                skuInfoEntity.setBrandId(spuInfoEntity.getBrandId());
                skuInfoEntity.setCatalogId(spuInfoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(spuInfoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);
                skuInfoService.saveSkuInfo(skuInfoEntity);
                Long skuId = skuInfoEntity.getSkuId();
                List<SkuImagesEntity> imagesEntities = sku.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    return skuImagesEntity;
                }).filter(entrty -> {
                    // 返回true能保存，返回false不保存
                    return !StringUtils.isEmpty(entrty.getImgUrl());
                }).collect(Collectors.toList());

                // 5.2 sku的图片信息 pms_sku_images
                skuImagesService.saveBatch(imagesEntities);
                // 5.3 sku销售属性的 pms_sku_sale_attr_value
                List<Attr> attr = sku.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(attr1 -> {
                    SkuSaleAttrValueEntity skuSaleAttrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(attr1, skuSaleAttrValueEntity);
                    skuSaleAttrValueEntity.setSkuId(skuId);
                    return skuSaleAttrValueEntity;
                }).collect(Collectors.toList());
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);

                // 5.4 sku的优惠满减信息 gulimall_sms sms_sku_ladder\sms_sku_full_reduction\sms_member_price
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(sku, skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if (skuReductionTo.getFullCount() > 0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0")) == 1) {

                }
                R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                if (r1.getCode() != 0) {
                    log.error("远程保存sku优惠信息失败");
                }
            });
        }


    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity spuInfoEntity) {

        this.baseMapper.insert(spuInfoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {

        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)) {
            wrapper.and((w) -> {
                w.eq("id", key).or().like("spu_name", key);
            });
        }

        String status = (String) params.get("status");
        if (!StringUtils.isEmpty(status)) {
            wrapper.eq("publish_status", status);
        }
        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId) && !"0".equalsIgnoreCase(brandId)) {
            wrapper.eq("brand_id", brandId);
        }
        String catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId) && !"0".equalsIgnoreCase(catelogId)) {
            wrapper.eq("catalog_id", catelogId);
        }
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                wrapper
        );
        return new PageUtils(page);
    }


    @Override
    public void spuUp(Long spuId) {
        //存入数据
        //查出当前的spuId对应的所有sku信息，品牌名字
        List<SkuInfoEntity> skus = skuInfoService.getSkuBySpuId(spuId);
        List<Long> ids = skus.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());
        // TODO: 2020/5/24 查询sku所有可以检索到的规格属性
        List<ProductAttrValueEntity> baseAttrs = productAttrValueService.baseAttrForSpu(spuId);
        List<Long> attrIds = baseAttrs.stream().map(attr -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());
        List<Long> searchAttrIds = attrService.selectSearchAttrIds(attrIds);

        Set<Long> idSet = new HashSet<>(searchAttrIds);

        List<SkuEsModel.Attrs> attrsEsList = baseAttrs.stream().filter(item -> {
            return idSet.contains(item.getAttrId());
        }).map(item -> {
            SkuEsModel.Attrs attrs1 = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(item, attrs1);
            return attrs1;
        }).collect(Collectors.toList());
        // TODO: 2020/5/24 发送远程调用查询是否有库存
        Map<Long, Boolean> stockMap = null;
        try {
            R skusHasStock = wareFeignService.getSkusHasStock(ids);
            TypeReference<List<SkuHasStockVo>> typeReference = new TypeReference<List<SkuHasStockVo>>() {

            };
            stockMap = skusHasStock.getData(typeReference).stream().collect(Collectors.toMap(SkuHasStockVo::getSkuId, item -> item.getHasStock()));
        } catch (Exception e) {
            log.error("库存查询服务异常，原因：{}", e);
        }

        //封装每个sku信息
        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> upCollect = skus.stream().map(sku -> {
            SkuEsModel esModel = new SkuEsModel();
            BeanUtils.copyProperties(sku, esModel);
            //单独处理skuPrice skuImg hasStock hotScore brandName brandImg catalogName attrs 
            esModel.setSkuPrice(sku.getPrice());
            esModel.setSkuImg(sku.getSkuDefaultImg());
            // 设置库存信息
            if (finalStockMap == null) {
                esModel.setHasStock(true);
            } else {
                esModel.setHasStock(finalStockMap.get(sku.getSkuId()));
            }
            // TODO: 2020/5/24 热度评分,先默认为0
            esModel.setHotScore(0L);
            // TODO: 2020/5/24 查询品牌和分类的名称信息
            BrandEntity brandEntity = brandService.getById(esModel.getBrandId());
            esModel.setBrandName(brandEntity.getName());
            esModel.setBrandImg(brandEntity.getLogo());
            CategoryEntity categoryEntity = categoryService.getById(esModel.getCatalogId());
            esModel.setCatalogName(categoryEntity.getName());
            // 设置检索属性
            esModel.setAttrs(attrsEsList);
            return esModel;
        }).collect(Collectors.toList());

        // TODO: 2020/5/24 将数据发送到es中 进行保存
        R r = searchFeignService.productStatusUp(upCollect);
        log.info(searchFeignService.toString());
        if (r.getCode() == 0) {
            //远程调用成功，修改spu状态
            // TODO: 2020/5/24
            baseMapper.updateSpuStatus(spuId, ProductConstant.StatusEnum.SUP_UP.getCode());
        }else {
            // TODO: 2020/5/24 重复调用，接口幂等性：重试机制
            /**
             * 1、构造请求数据。 将对象转为json
             *    RequestTemplate template = buildTemplateFromArgs.create(argv);
             * 2、发送请求进行执行，执行成功解码相应数据
             *    executeAndDecode(template);
             * 3.执行请求会有重试机制
             *       while (true) {
             *       try {
             *         return executeAndDecode(template);
             *      }catch{
             *          try{
             *              // 重试
             *          }
             *      }
             *      自己可以设置重试机制
             *
             */
        }
    }
}